Register for elevator-cars.



O. SGHENGK.

REGISTER FOR ELEVATOR CARS.

APPLICATION FILED JULY 14, 1911.

Patented Apr.15,1913.

2 IKEET8-BKEET 1.

G. SGHENCK. REGISTER FOR ELEVATOR-CARS. APPLIOLTIONVIILED JULY 14, 1911.

Patented Apr. 15, 19131 i 2 SHEETS-SHEET 2.

o H!!! -:Z I

CHARLES SCHENCK, OF CHICAGO, ILLINOIS, ASSIGNGR F30 ELEVATOR SUPPLY &

REPAIR COMPANY, OF'CHICAGO, ILLINOIS, A CDRPORAIION OF ILLINOIS.

REGISTER FOR. ELEVATOR-CARS.

To allot/710m it may concern Be it known that I, CHARLES Summon, a citizen. of the United States, and a resident of Chicago, county of Cook. and State of Illinois, have invented certain new and useful Improvements in Registers for Elevator- Cars.

The invention relates to registers 01' recorders for elevator cars and seeks to provide simple and effective means whereby the total distance traveled by the elevator car, the number of trips and the number of stops made by the car can be registered or recorded.

The invention consists in the features of improvement hereinafter set forth, illustrated in the preferred form in the accompanying drawings and more particularly pointed out in the appended claims.

In the drawings, Figure-,1 is a plan view of the improved register with the casing thereof shown in section. Fig. 2 is a side elevation with portions of the casing broken away and parts thereof shown in section.

Fig. 3 is a vertical section on the lines 3 3 of Fi 1 and 2. Fig. 4- is a partial rear elewith the casing broken away and partly shown in section. Fig. 5 is a portion of the operating, mechanism for the counter that registers the trips. Fig. '6 is a detail View of parts shown in section on the. lines 6(') of Figs. 1 and Fig. 7 is a detail view of the actuator for the trip registering counter.

The frame of the improved recorder comprises a base 10 and upright flanged plate '11 secured to the base at its front edge. An

inolosing casing 12 is'reuiovably secured in position by screws 13 which extend through the flanges of the plate 10 and tl'irough lugs l tupon the base. The register is preferably mounted in position at the upper end of the elevator shaft. The main operating shaftlo for the register is journaled in suitable bearings in the end plate 2 and in brackets 16 and 17 that .are fixed to the base 10. One end of the shaft projects through the inclosing casing 3 and is suitably connected to the elevator mechanism and rotates in opposite directions as the elevator car travels up and down. The extent of rotation or the number of revolutions of the register operating shaft 15 is definitely proportionate to the travel of the car.

Two counters l8 and 19, for respectively construction.

Specification of Letters Patent. Patented Apr, 15,1913, Application filed July 1Q. 1911. Serial No. 638,569. I

registering the travel and the number of trips of the elevator-car, are mounted upon the outer face of the front plate 1]. and are inclosed in a supplemental casing 20' remov ably secured to the front plate. These counters may be of any usual or suitable The counter 18 which registers the distance traveled by the car, is driven from a shaft 21 which is journaled in suitable bearings formed in the front, plate 11, and in the upper end of the triangular bracket 16. The forward end of thisshaft extends through the front-plate and is pro-' vided with a gear 22 connected by an inter mediate pinion 23 to a pinion 24 on the end of atransvcrse shaft 25 journaled in the counter frame. A worm 26 on the shaft drives a worm wheel 27 on the main shaft 38' of the counter. The idle pinion 23 is mounted upon a bracket 29 (see Fig. 1) secured to the front plate 11.

The register operating shaft 21 is driven in one direction from the oppositely rotating shaft 15 through the medium of two automatic, oppositely acting clutches and suitable connecting gearing so that the registering counter 18 is advanced when the elevator *ar travels either up or down and to iUl'GXiIQHl? proportionate to the travel of the car. As shown, the shaft 21 has two gears 30 and 31 fixed thereto. The'gear 30 directly engages the gear 32 mounted upon the main driveshaft- 15. The gear 31 is con nected to a gear 33 on the main drive shaft. through the mednun of a Wide. intermediate idler 84 mounted upon a counter shaft. (see Figs. 2 and The gears and 33 are loose on the main drive shaft 15 and are arranged to be alternately connected thereto as the shaft rotates in one or the other direct-ion. by a. pair of oppositely acting clutches. These clutches comprise a pair of clutch disks 36 and 37 which are loosely mounted on the shaft 15 and connected to the gears 32 and 33. These disks are provided with annular, peripheral grooves which are V-shaped in section and which are arranged to be engaged by a pair'of V- shaped, segmental, friction dogs 38. These dogs are eccentrically pivoted by screws 39 upon the end and on opposite sides of an arm 40 which is fixed to the shaft '15 between-the clutch disks 36 and 37. A spring metal plate 41 fixed upon the end of the arm 40 is provided with extensions 42 which engage the friction dogs 38 and press them lightly against the grooved friction disks 3G and 37. Each eccentrically pivoted friction dog 38 is so arranged that when the shaft 15 is rotated in one direction, it will bind within the groove of the companion -t'riction disk and drive it together with the gear connected thereto but when the shaft rotates in the opposite direction, the dog will slip idly through the groove of the clntch'disk. The dogs are oppositely ar rangedvso that, as the shaft 15 rotates in one direction, the clutch disk 36 will be clamped thereto by the corresponding dog 38, while the other dog will slip idly through the groove of the clutch disk 37.. Under such circumstances, the shaft 15 will drive the register operating shaft 21 through the medium of the clutch disk 36 and gears 82 and 30. lVhen the shaft is driven in the opposite direction. the clutch disk 37 rotates with the shaft 15 and the shaft 21 is driven through the medium of the gears 3i- 84 and 31. The gear 32 and clutch disk 38, then rotate idly on the main (ll'l'\9 shaft 15. Inasmuch asthe clutch disk 87 is connected to the shaft 21 through the medium of the intermediate idler 3st, the register operating shaft 21 will, however, be driven in the same direction as when driven from the shaft 15 through the medium of the friction disk 36, and the counter 18 will'thus be driven in the same direction to register the dis tance traveled by the car, irrespective of the direction in which the car is moving' The construction of the clutch disks and dogs'is such that they will act instantly to connect or disconnect the corresponding gears 32 and 38 and the drive shaft. 15 upon thereversal of movement of the shaft, an.

entire travel of the car both up and down is thereby actively registered.

The construction of the trip registering counter 19 is similar to the counter 18. The actuator shaft 25 of this counter is provided at its inner end with a ratchet wheel 43 which is driven by a pawl or dog it on the end of a swinging arm 45 that extends through a slot inthe front plate 11. This arm is "mounted at its inner. end (see Figs. 2 and 3) upon the upper end of a vertical shaft 46, the lower ,end of which ,is journaled in a suitable bearing upon the base 10. At its lower end, the shaft. 46 is pro vided with. a projecting arm 47 (see Figs. 3, 5 and 6) and a pine? on the end of this arm extends through a slot in the lateral offset portion of a head or member 4-8. A djusting screws 49 extending through the ottset portion of the member 48 engage the pin. The head or member is fixed to the forward end of a pair of shifter rods 50 which are arranged to slide through suitable guide openings or bearings in a pair of upright brackets 51 fixed to the base 10.

A pair of heads or members 52 fixed to the sliding rods 50 are provided with oppositely arranged, pivoted dogs .that are held in normal position against stops by a pair of springs ()ne of the dogs 53 is arranged opposite the upper rod 50 and the other opposite the low-er rod and these dogs are arranged to be engaged by a pair of tappets or lugs 56 mounted upon the upper lugs or abutments 56. the upper lug for example, will engage the correspoi'iding dog 53 and move the shifter rods 50 in one direction. When the car travels up, the other or lower lug or tappet 56 passes idly over the corresponding dog'53, but, when the car moves down and approaches the lower limit of its movement. this lower lug or tappet 56 will engage its companion dog 53 and shift the rods 50 in the opposite direction. The connected rods 50 are thus shifted back and forth and the counter 19 advanced one step upon each complete trip of the elevator car.

The worm wheel 57 is provided with a circular series of openings 60 and the lugs or tappets 56 are provided with slotted segiental arms (31. By means of screw bolts 62 which pass through the openings 60 and the slotted arms (31, the tappets 56 may be I upon the worm wheel in proper position to shift the actuator of the trip registering counter at points adjacent the upper and lower limits of movement of the car. By this arrangen'ient. the register may be properly adjusted in accordance with the height of the elevator shat't. Preferably. also. the heads or members 48 and 5; are adjustably clamped upon the rods 50 by set screws as, so that the operating mechanism for the counter 19 may be so set. as to accurately register only the number of complete trips made by the car.

A counter 1- is mounted upon a pair of arms or brackets 65 and (it; which are fixed to the rear face of the trout plate 2 and project rearwardly and upwardly therefrom. The actuator shaft 25 of this counter is provided at its rear end with a. ratchet wheel 67 (sec Fig. 3) which arranged to be engaged by spring-held retaining and actuating pawls or dogs (38 and (it). The no tuating dog is mounted on an arm T0 which is pivoted between its ends on an upright 71. lived to the counter frame. The opposite end of the arm is provided with a counter-weight 72 which tends to hold the arm in the position shown in the drawings. The dog operating arm 70 is connected by a depending link 73 to the forward end of an operating lever 74 (see Figs. 3 and 4:) which extends rearwardly and is pivotally mounted between its ends upon a bent arm or bracket 7 5. This arm or bracket is fixed to the upper portion of an upright U-shaped bracket 76 that rises from the base 10.

A short shaft 77 journaled in the bracket 76 and in an upright 78 on the base 1, extends through the rear wall of the casing 3 and is provided on its rear end with a pin ion 79 (see Figs. 2 and 5), which engages a gear 80 on the rear end of the main operating shaft 15. The rear end of the arm or lever 7-2 is provided with a shoe 81 which rests upon the periphery of a wheel '82 .mounted on the shaft 77. Th's' wheel is which extend through radial slots in the sides of the wheel 82.

The gearing between the main drive shaft 15 and the shaft-77 is such that the latter and the wheel 82thereon are driven at high speed whenever the elevator-car is in motion and the blocks 83 are thrown out in radial direction by centrifugal force against the shoe 81 and uphold the shoe and the rear end of the arm or lever 74, as long as the car is in motion. When the rear end of the lever 74 is thus upheld, its. forward end rests upon a stop 7 and the upper end of the pawl arm 70 depressed and the dog 69 drawn back for the space of one tooth on the ratchet wheel 67. When the car stops, the aveight of the shoe 81 and the counterweight 72 shift the arms 74 and 70 and the dog 6 9 advances the counter 64 one step. The counter thus accurately registers the number of stops made by the ear.

The counters for registering the travel, trips and stops of the elevator car, are all properly driven from the common shaft 15 which is connected to the car and rotates in opposite directions as the car travels up and down.

lt.is obvious that numerous changes may be made in the details set forth without depi-lrture from theessentials of the invention as defined 'in the claims,

claim my invention:

1'. in a register for elevator cars the'combinntidn with travel and stop registering countersf'ofa main drive shaft for said coi-inters'connected to thecar and rotat1nginxgopposite directions 1n accordance with theifra'vel .of the cai, 'two' oppositely acting clutches and connecting gearing interposed etween said main drive shaft and said tuating devices for said trip travel'registering counter for advancing the latter as said shaft rotates in one or the other dlrectlon, an actuator for said stop registering counter and means controlled by the starting and stopping of said main drive shaft for operating said actuator, substantially as described.

Tn registers forel'evator cars, the combination with travel and stop registering counters and separate actuating shafts therefor, of a main drive shaft connected to the car and rotating in opposite directions in accordance with the travel thereofitwo oppositcly and automatically acting clutches alternately driven by said main shaftin accordance with thedirection of rotation thereof, gearing interposed between said clutches and said travel registering counter for rotating the latter in the smile direction, pawl and ratchet actuator mechanism for advancing said stop registering counter and a centrifugal device driven by said main shaft and operating said pawl and ratchet mechanism, substantially as described.

3. In a register for elevator cars, the combination with travel. trip-and stop registering counters, of a main drive shaft connected to the car and rotating in opposite directions in accordance .with the travel of the car, two oppositely acting clutches and. connecting gearing interposed between said main drive shaft and said travel registering coun tor for advancing the latter as said shaft rotates in one or the other direction acand stop registering counters. means operated by said main shaft for shifting the actuator of said trip registering counter back and forth at the opposite ends of the travel of the car and means controlled by the starting and stopping of said main shaft for shifting the actuator of said stop registering counter, sub stantially as described.

4. in a register for elevator cars, the combination with travel, trip and stop regis tering counters. a main drive shaft connected to the car and rotating in opposite directions in accordance with the travel'of the car, two oppositely and auton'iatically aeting clutches alternately driven by said main shaft as the latter rotates in one or the other 5. In a register for elevator cars, the com bination with a shaft connected to the car and rotating in opposite directions in accordance with the travel of the car, of a trip registering counter, a pawl and ratchet actuator therefor, a. reciprocating shifter for said pawl and ratchet actuator, a Worm wheeldriven from said main shaft and adjustable tappets and dogs mounted on said worm wheel and said shifter for operating said pawl and *atchet actuator at the opposite ends of the travel of the car, substantially-as described.

(3. In a register for elevator cars, the combination with a shaft connected to the car and rotating in opposite directions in accordance with the travel of the car, of a stop registering counter, an actuator therefor and means controlled by the starting and stopping of said shaft for operating said actuator, substantially as described.

. 7. In a register for elevator cars, the coinbination with a shaftconnected to the car, and rotating in opposite directions in accordance with the travel of the car, of a stop registering counter, an actuator therefor, a reciprocating pawl actuator for said counter and a centrifugal device connected to and rotated. by said shaft and ar'angcd to shift said pawl back and forth as said shaft starts and stops, substantially as described.

8. In a register for elevator cars, the combination with a shaft connected to the car, and rotating in opposite directions in accordance. with the travel of the car, of a stop registering counter, an actuator therefor, an actuating pawl for said counter, an operating shifter for said pawl and a rotating member gcared to said shaft and having 5 series of radially movable parts arranged to engage said shifter and thereby efiect the movement of the latter in opposite directions as said shaft starts and stops, substantially as described.

9. In a register for elevator cars, the combination With trip and stop registering counters, of a main drive shaft connected to the car to rotate in opposite directions in accordance with the travel of the car, actuators for said counters, speed reducing gearing connected to said shaft and driven in opposite directions thereby and arranged to shift said trip counter actuator back andforth at the opposite ends of the travel. of the car and means controlled by the starting and stopping of said shaft for shifting said stop counter actuator, substantially as described.

10. In a register for. elevator cars, the combination with trip and stop registering counters, of a main drive shaft connected to the car to rotate in opposite directions in accordance with the travel of the car, pawl actuators for said counters, speed reducing gearing connected to said shaft and driven in opposite directions thereby, means controlled by said gearing for shifting said trip counter actuator back and forth at the opposite ends of the travel of the car, a centrifugal device connected to and driven by said shaft and means controlled by said centrifu gal device for shifting said stop counter actuator back and forth as said shaft starts and stops, substantially as described.

CHARLES SCHENCK.

'VVitnesses ELEANOR Hmnsow, KATHARINE GERLACII. 

